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US 7,000,320 B2Granted
Process for manufacturing miniature ball bearings
AssigneeMinebea Co., Ltd.
InventorRikuro Obara
Life of this patent
Estimating the term…
Abstract
A process for manufacturing miniature ball bearings that reduces material loss to improve manufacturing efficiency. The process consists of obtaining an inner and outer ring blank by cutting a first blank, forging the first blank to obtain a final blank, and separating the final blank to form an outer ring blank and an inner ring blank. The outer ring blank has an outer diameter of at most 13 mm. Cutting the first blank is performed by mechanically cutting and machining.
Claims7
A process for manufacturing miniature rolling bearings to obtain an outer ring blank and an inner ring blank, comprising:
- cutting a first blank from a bar shaped material by mechanically cutting and machining;
- forging said first blank obtaining a second blank;
- cutting said second blank obtaining a plurality of final blanks;
- and
- separating said plurality of final blanks obtaining an outer ring blank and an inner ring blank for each final blank;
- wherein each outer ring blank has an outer diameter of at most 13 mm and the inner ring blanks are disposed inside the outer ring blanks.
3 more elements
Dependencies are inferred from the claim text.